:root {
  --bg0: #0e1210;
  --bg1: #161c18;
  --panel: #1c241f;
  --line: #2d3a32;
  --text: #e8efe8;
  --muted: #8fa094;
  --accent: #d4a017;
  --import: #3db8a0;
  --export: #e07a3d;
  --ok: #6fbf73;
  --bad: #d65a5a;
  --warn: #d4a017;
  --radius: 18px;
  --font: "Instrument Sans", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg0);
  padding: 20px clamp(14px, 3vw, 40px) 48px;
}

.bg {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(900px 500px at 8% -8%, rgba(212,160,23,.16), transparent 55%),
    radial-gradient(700px 420px at 92% 0%, rgba(61,184,160,.10), transparent 50%),
    linear-gradient(180deg, #121714, #0e1210 45%, #0c100e);
}

.top {
  display: flex; justify-content: space-between; align-items: end; gap: 16px;
  margin-bottom: 18px;
}
.eyebrow { margin: 0; color: var(--accent); letter-spacing: .14em; text-transform: uppercase; font-size: 11px; font-weight: 600; }
h1 { margin: 4px 0 0; font-size: clamp(26px, 4vw, 40px); font-weight: 700; letter-spacing: -.02em; }
h2 { margin: 8px 0 14px; font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .12em; }
h3 { margin: 0 0 8px; font-size: 16px; }
.muted { color: var(--muted); font-size: 13px; margin: 0 0 12px; }
.mono { font-family: var(--mono); }

.status {
  font-family: var(--mono); font-size: 12px; color: var(--muted);
  border: 1px solid var(--line); border-radius: 999px; padding: 8px 14px; background: rgba(28,36,31,.75);
  white-space: nowrap;
}
.status.ok { color: var(--ok); border-color: rgba(111,191,115,.35); }
.status.warn { color: var(--warn); border-color: rgba(212,160,23,.4); }
.status.bad { color: var(--bad); border-color: rgba(214,90,90,.4); }

.tabs {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px;
}
.tab {
  background: transparent; color: var(--muted); border: 1px solid var(--line);
  border-radius: 999px; padding: 8px 14px; font: 600 13px var(--font); cursor: pointer;
}
.tab.active { color: #1a1405; background: var(--accent); border-color: var(--accent); }

.panel { display: none; }
.panel.active { display: block; }

.flow-stage {
  display: grid; gap: 14px;
}
.flow-head {
  display: flex; justify-content: space-between; align-items: start; gap: 16px;
  background: linear-gradient(145deg, #24312a, #1a221d 60%);
  border: 1px solid var(--line); border-radius: 24px; padding: 22px 24px;
  box-shadow: 0 20px 60px rgba(0,0,0,.35);
}
.flow-label { font-size: 14px; color: var(--muted); margin-bottom: 8px; }
.flow-watts { font-family: var(--mono); font-size: clamp(36px, 5.5vw, 60px); font-weight: 600; letter-spacing: -.04em; }
.flow-watts.import { color: var(--import); }
.flow-watts.export { color: var(--export); }
.flow-watts.neutral { color: var(--text); }
.flow-sub { margin-top: 10px; color: var(--muted); font-size: 14px; line-height: 1.5; }
.zg-pill {
  font-family: var(--mono); font-size: 12px; padding: 10px 14px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted); white-space: nowrap; align-self: center;
}
.zg-pill.on { color: var(--ok); border-color: rgba(111,191,115,.45); background: rgba(111,191,115,.08); }
.zg-pill.off { color: var(--bad); border-color: rgba(214,90,90,.4); background: rgba(214,90,90,.08); }

.sankey-wrap {
  background: var(--panel); border: 1px solid var(--line); border-radius: 24px;
  padding: 10px 8px 4px; overflow: hidden;
}
.sankey-wrap svg { width: 100%; height: auto; display: block; }
.pf-node rect {
  fill: #152019; stroke: var(--line); stroke-width: 1.5; rx: 16;
}
.pf-node.house rect { fill: #1c2a22; stroke: rgba(212,160,23,.45); }
.pf-node.grid rect { fill: #15242a; stroke: rgba(61,184,160,.4); }
.pf-node.bank rect { fill: #241c14; stroke: rgba(224,122,61,.4); }
.pf-node.stream rect { fill: #1a221d; stroke: rgba(111,191,115,.35); }
.pf-title { fill: var(--muted); font-family: var(--font); font-size: 12px; font-weight: 600; }
.pf-value { fill: var(--text); font-family: var(--mono); font-size: 18px; font-weight: 600; }
.pf-meta { fill: var(--muted); font-family: var(--mono); font-size: 11px; }
.pf-wire {
  fill: none; stroke: #3a4a40; stroke-width: 3; stroke-linecap: round;
  opacity: .55;
}
.pf-wire.active-import { stroke: var(--import); opacity: 1; }
.pf-wire.active-export { stroke: var(--export); opacity: 1; }
.pf-wire.active-batt { stroke: #e07a3d; opacity: 1; }
.pf-wire.active-stream { stroke: #6fbf73; opacity: 1; }
.pf-flow {
  fill: none; stroke-width: 3; stroke-linecap: round;
  stroke-dasharray: 10 14; animation: pf-dash 1.1s linear infinite;
  opacity: 0;
}
.pf-flow.on { opacity: .95; }
.pf-flow.import { stroke: var(--import); }
.pf-flow.export { stroke: var(--export); animation-direction: reverse; }
.pf-flow.batt { stroke: #e07a3d; }
.pf-flow.stream { stroke: #6fbf73; }
.pf-flow.rev { animation-direction: reverse; }
@keyframes pf-dash { to { stroke-dashoffset: -48; } }
.pf-leg {
  fill: var(--text); font-family: var(--mono); font-size: 13px; font-weight: 600;
}
.pf-leg-sub { fill: var(--muted); font-family: var(--font); font-size: 10px; }

.batt-strip {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px;
}
.batt-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 14px 14px 12px;
}
.batt-card .bn { color: var(--muted); font-size: 12px; margin-bottom: 6px; }
.batt-card .bv { font-family: var(--mono); font-size: 22px; font-weight: 600; }
.batt-card .bm { margin-top: 4px; color: var(--muted); font-size: 12px; font-family: var(--mono); }
.batt-gauge {
  margin-top: 10px; height: 8px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden;
}
.batt-gauge > span {
  display: block; height: 100%; border-radius: 999px;
  background: linear-gradient(90deg, #e07a3d, #d4a017);
  width: 0%; transition: width .6s ease;
}
.batt-card.low .batt-gauge > span { background: linear-gradient(90deg, #d65a5a, #e07a3d); }
.batt-card.ok .batt-gauge > span { background: linear-gradient(90deg, #6fbf73, #d4a017); }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}
.kpi {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px;
}
.kpi span { display: block; color: var(--muted); font-size: 12px; margin-bottom: 8px; }
.kpi strong { font-family: var(--mono); font-size: 22px; font-weight: 500; }

@media (max-width: 720px) {
  .flow-head { flex-direction: column; }
  .pf-value { font-size: 15px; }
  .pf-leg { font-size: 11px; }
}


.tiles {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
  gap: 12px;
}
.tile {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; min-height: 108px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.tile .name { color: var(--muted); font-size: 13px; }
.tile .value { font-family: var(--mono); font-size: 24px; font-weight: 500; margin-top: 10px; }
.tile .meta { margin-top: 8px; font-size: 12px; color: var(--muted); }
.tile.warn { border-color: rgba(224,122,61,.45); }
.tile.ok { border-color: rgba(111,191,115,.35); }
.tile.bad { border-color: rgba(214,90,90,.45); }

.ble-spot {
  background: var(--panel); border: 1px solid var(--line); border-radius: 20px;
  padding: 16px 18px 14px; margin-bottom: 14px;
}
.ble-spot h2 { margin: 0 0 6px; font-size: 16px; }
.ble-hint { margin: 0 0 12px; color: var(--muted); font-size: 13px; line-height: 1.4; }
.ble-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 10px;
}
.ble-card {
  border: 1px solid var(--line); border-radius: 14px; padding: 12px 12px 10px; background: rgba(0,0,0,.16);
}
.ble-card .ble-name { font-size: 12px; color: var(--muted); margin-bottom: 6px; }
.ble-card .ble-val { font-family: var(--mono); font-size: 22px; font-weight: 600; }
.ble-card .ble-q { margin-top: 4px; font-family: var(--mono); font-size: 11px; text-transform: uppercase; letter-spacing: .04em; }
.ble-card .ble-bar {
  margin-top: 10px; height: 6px; border-radius: 999px; background: rgba(255,255,255,.08); overflow: hidden;
}
.ble-card .ble-bar > span { display: block; height: 100%; border-radius: 999px; background: var(--accent); width: 0%; }
.ble-card.q-excellent .ble-q, .ble-card.q-excellent .ble-val { color: var(--ok); }
.ble-card.q-good .ble-q, .ble-card.q-good .ble-val { color: var(--ok); }
.ble-card.q-fair .ble-q, .ble-card.q-fair .ble-val { color: var(--warn, #e07a3d); }
.ble-card.q-weak .ble-q, .ble-card.q-weak .ble-val { color: var(--warn, #e07a3d); }
.ble-card.q-poor .ble-q, .ble-card.q-poor .ble-val { color: var(--bad); }
.ble-card.q-unknown .ble-q, .ble-card.q-unknown .ble-val { color: var(--muted); }

.device-list { display: grid; gap: 14px; }
.device {
  background: var(--panel); border: 1px solid var(--line); border-radius: 20px; padding: 18px 18px 14px;
}
.device header {
  display: flex; justify-content: space-between; align-items: baseline; gap: 12px; margin-bottom: 12px;
}
.device header h3 { margin: 0; font-size: 17px; }
.device header .badge {
  font-family: var(--mono); font-size: 11px; padding: 4px 8px; border-radius: 999px;
  border: 1px solid var(--line); color: var(--muted);
}
.device header .badge.on { color: var(--ok); border-color: rgba(111,191,115,.4); }
.device header .badge.off { color: var(--bad); border-color: rgba(214,90,90,.4); }
.device .rows {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 8px;
}
.device .row {
  background: rgba(0,0,0,.18); border: 1px solid var(--line); border-radius: 12px; padding: 10px 12px;
}
.device .row .k { display: block; color: var(--muted); font-size: 11px; margin-bottom: 4px; }
.device .row .v { font-family: var(--mono); font-size: 15px; font-weight: 500; }
.device .note { margin: 10px 0 0; color: var(--muted); font-size: 12px; }
.tile {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; min-height: 108px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.tile .name { color: var(--muted); font-size: 13px; }
.tile .value { font-family: var(--mono); font-size: 24px; font-weight: 500; margin-top: 10px; }
.tile .meta { margin-top: 8px; font-size: 12px; color: var(--muted); }
.tile.warn { border-color: rgba(224,122,61,.45); }
.tile.ok { border-color: rgba(111,191,115,.35); }
.tile.bad { border-color: rgba(214,90,90,.45); }

.control-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}
.control-card {
  background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 18px;
}
.actions { display: flex; flex-wrap: wrap; gap: 8px; }
.slider-row { display: flex; align-items: center; gap: 12px; margin: 10px 0 14px; }
.slider-row input[type=range] { flex: 1; }

button, .tab {
  appearance: none;
}
button {
  font: 600 14px var(--font); color: #1a1405; background: var(--accent);
  border: 0; border-radius: 12px; padding: 11px 14px; cursor: pointer;
}
button.ghost { background: transparent; color: var(--text); border: 1px solid var(--line); }
button:hover { filter: brightness(1.07); }
.hint { color: var(--muted); font-size: 13px; min-height: 1.2em; }

.foot {
  margin-top: 28px; padding-top: 14px; border-top: 1px solid var(--line);
  font-family: var(--mono); font-size: 11px; color: var(--muted);
}

dialog {
  border: 1px solid var(--line); border-radius: 16px; background: var(--bg1); color: var(--text);
  padding: 24px; width: min(420px, 92vw);
}
dialog::backdrop { background: rgba(0,0,0,.65); }
dialog input {
  width: 100%; margin: 12px 0 16px; padding: 12px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--bg0); color: var(--text); font-family: var(--mono);
}